Element-R: log outgoing HTTP requests (#3127)

otherwise it's rather hard to see them, at least in Firefox.

src/rust-crypto/OutgoingRequestProcessor.ts

@@ -104,6 +104,13 @@ export class OutgoingRequestProcessor {
             prefix: "",
         };
 
-        return await this.http.authedRequest<string>(method, path, queryParams, body, opts);
+        try {
+            const response = await this.http.authedRequest<string>(method, path, queryParams, body, opts);
+            logger.info(`rust-crypto: successfully made HTTP request: ${method} ${path}`);
+            return response;
+        } catch (e) {
+            logger.warn(`rust-crypto: error making HTTP request: ${method} ${path}: ${e}`);
+            throw e;
+        }
     }
 }